feat: replace activity markers with typed sites

docs/RESOURCE_NODE_MIGRATION.md

@@ -10,7 +10,7 @@
 | **4a** | Wood target selection (NPC) | ✅ Complete |
 | **4b** | Player parity (extraction contract) | ✅ Complete |
 | **5** | Jajce world placement and runtime integration | ✅ Complete |
-| **6** | Replace remaining activity markers | 🔶 Resource zones removed; activity targets pending |
+| **6** | Replace remaining activity markers | ✅ Storage and activity sites authored |
 
 ### Key divergences from the original plan
 
@@ -61,9 +61,9 @@ environment is integrated. It is easier to debug target selection, reservation,
 depletion, and task completion without terrain and navigation changes happening
 at the same time.
 
-The old resource zones have been removed. Temporary activity markers remain
-only for actions whose real target type does not exist yet. They are not
-fallbacks and are not part of the target architecture.
+The old resource zones and temporary activity markers have been removed. Food
+transfer targets `StorageNode`; rest, study, and patrol target `ActivitySite`.
+These are not resource fallbacks and are not resource-search areas.
 
 ## Why this is the next systems step
 
@@ -522,10 +522,10 @@ Remove each old zone only when its replacement has:
 - debug visibility;
 - save representation.
 
-**Progress:** the `TaskZone` container and obsolete `FarmZone`/`ForestZone`
-nodes have been deleted from `main.tscn`. The surviving nodes live under
-`LegacyActivityMarkers` to make their transitional role explicit. Task-to-marker
-mapping still exists for rest, study, and patrol, so this phase is not complete.
+**Progress:** the `TaskZone` container, obsolete `FarmZone`/`ForestZone` nodes,
+and final `LegacyActivityMarkers` container have been deleted from `main.tscn`
+and `JajceWorld`. Task-to-marker mapping has been replaced by typed site
+queries.
 
 The former `FoodZone`/`PantryMarker` is now an authored `StorageNode` at
 `JajceWorld/WorldObjects/StorageSites/VillagePantry`, backed by
@@ -533,9 +533,21 @@ simulation-owned `StorageStateRecord` state and explicit deposit/withdraw/eat
 transactions. Successful food transfers emit serializable economic events, and
 an active NPC visibly carries food between source, pantry, and consumption.
 
+Guard, study, and rest are now authored `ActivitySite` instances at
+`JajceWorld/WorldObjects/ActivitySites`. The adapter chooses the nearest loaded
+site that supports the requested action. Capacity is currently presentation
+metadata; reservation/enforced occupancy can be added when multiple NPCs
+compete for the same social/workstation site.
+
 **Exit:** temporary activity markers and task-to-marker mapping are deleted,
 not merely unused.
 
+**Status: complete for the marker-removal migration.** Future work should
+extend target scoring rather than reintroducing zones: resources can be spread
+as many finite `ResourceNode` instances across foliage, animal camps, berry
+patches, and village stockpiles, then ranked by distance, reachability, safety,
+profession, and NPC comfort range.
+
 ## Test scenarios
 
 At minimum, exercise: